Add a lowercase String list property - fixes #602

src/main/java/fr/xephi/authme/settings/domain/Property.java

@@ -3,6 +3,7 @@ package fr.xephi.authme.settings.domain;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.yaml.snakeyaml.Yaml;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
@@ -33,6 +34,17 @@ public abstract class Property<T> {
         return new StringListProperty(path, defaultValues);
     }
 
+    /**
+     * Create a new String list property where all values are lowercase.
+     *
+     * @param path The property's path
+     * @param defaultValues The items in the default list
+     * @return The created list property
+     */
+    public static Property<List<String>> newLowercaseListProperty(String path, String... defaultValues) {
+        return new LowercaseStringListProperty(path, defaultValues);
+    }
+
     /**
      * Create a new enum property.
      *
@@ -165,7 +177,7 @@ public abstract class Property<T> {
     /**
      * String list property.
      */
-    private static final class StringListProperty extends Property<List<String>> {
+    private static class StringListProperty extends Property<List<String>> {
 
         public StringListProperty(String path, String[] defaultValues) {
             super(path, Arrays.asList(defaultValues));
@@ -196,4 +208,28 @@ public abstract class Property<T> {
         }
     }
 
+    /**
+     * Lowercase String list property.
+     */
+    private static final class LowercaseStringListProperty extends StringListProperty {
+
+        public LowercaseStringListProperty(String path, String[] defaultValues) {
+            super(path, defaultValues);
+        }
+
+        @Override
+        public List<String> getFromFile(FileConfiguration configuration) {
+            if (!configuration.isList(getPath())) {
+                return getDefaultValue();
+            }
+
+            // make sure all elements are lowercase
+            List<String> lowercaseList = new ArrayList<>();
+            for (String element : configuration.getStringList(getPath())) {
+                lowercaseList.add(element.toLowerCase());
+            }
+
+            return lowercaseList;
+        }
+    }
 }

src/main/java/fr/xephi/authme/settings/properties/RestrictionSettings.java

@@ -7,6 +7,7 @@ import fr.xephi.authme.settings.domain.SettingsClass;
 import java.util.List;
 
 import static fr.xephi.authme.settings.domain.Property.newListProperty;
+import static fr.xephi.authme.settings.domain.Property.newLowercaseListProperty;
 import static fr.xephi.authme.settings.domain.Property.newProperty;
 
 public class RestrictionSettings implements SettingsClass {
@@ -30,7 +31,7 @@ public class RestrictionSettings implements SettingsClass {
 
     @Comment("Allowed commands for unauthenticated players")
     public static final Property<List<String>> ALLOW_COMMANDS =
-        newListProperty("settings.restrictions.allowCommands",
+        newLowercaseListProperty("settings.restrictions.allowCommands",
             "/login", "/register", "/l", "/reg", "/email", "/captcha");
 
     @Comment({
@@ -87,7 +88,7 @@ public class RestrictionSettings implements SettingsClass {
         "    AllowedRestrictedUser:",
         "    - playername;127.0.0.1"})
     public static final Property<List<String>> ALLOWED_RESTRICTED_USERS =
-        newListProperty("settings.restrictions.AllowedRestrictedUser");
+        newLowercaseListProperty("settings.restrictions.AllowedRestrictedUser");
 
     @Comment("Should unregistered players be kicked immediately?")
     public static final Property<Boolean> KICK_NON_REGISTERED =
@@ -194,7 +195,7 @@ public class RestrictionSettings implements SettingsClass {
         "It is case-sensitive!"
     })
     public static final Property<List<String>> UNRESTRICTED_NAMES =
-        newListProperty("settings.unrestrictions.UnrestrictedName");
+        newLowercaseListProperty("settings.unrestrictions.UnrestrictedName");
 
 
     private RestrictionSettings() {

src/main/java/fr/xephi/authme/settings/properties/SecuritySettings.java

@@ -8,6 +8,7 @@ import fr.xephi.authme.settings.domain.SettingsClass;
 import java.util.List;
 
 import static fr.xephi.authme.settings.domain.Property.newListProperty;
+import static fr.xephi.authme.settings.domain.Property.newLowercaseListProperty;
 import static fr.xephi.authme.settings.domain.Property.newProperty;
 
 public class SecuritySettings implements SettingsClass {
@@ -98,7 +99,7 @@ public class SecuritySettings implements SettingsClass {
         "- '123456'",
         "- 'password'"})
     public static final Property<List<String>> UNSAFE_PASSWORDS =
-        newListProperty("settings.security.unsafePasswords", "123456", "password", "qwerty", "12345", "54321");
+        newLowercaseListProperty("settings.security.unsafePasswords", "123456", "password", "qwerty", "12345", "54321");
 
     private SecuritySettings() {
     }